University of Michigan MARC Catalog Records
Generously put up on the net with no rescrictions (cc0), University of Michigan posted the catalog records that they authored. Here they are posted in MARC binary and MARC XML formats.
Mediatype dataCreator University of MichiganIdentifier UniversityOfMichiganMarcCatalogRecordsAddeddate 2010-11-25 04:06:24Publicdate 2010-11-25 13:40:17Filesxml Sun Dec 5 23:47:21 UTC 2010
This is the page that announced these files in November of 2010.